the main landmass of a region or country, as opposed to its islands

与周边岛屿相对的某地区或国家的大陆本土

the principal island of an archipelago

群岛中的主岛

Great Britain, especially contrasted with nearby islands or Northern Ireland

大不列颠，尤指与附近岛屿或北爱尔兰相对时

relating to or located on the mainland

与大陆有关的；位于大陆的